74739983 has 4 divisors (see below), whose sum is σ = 74955720. Its totient is φ = 74524248.

The previous prime is 74739971. The next prime is 74739997. The reversal of 74739983 is 38993747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74739983 - 2⁴ = 74739967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74739913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107348 + ... + 108041.

It is an arithmetic number, because the mean of its divisors is an integer number (18738930).

Almost surely, 2^74739983 is an apocalyptic number.

74739983 is a deficient number, since it is larger than the sum of its proper divisors (215737).

74739983 is a wasteful number, since it uses less digits than its factorization.

74739983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215736.

The product of its digits is 1143072, while the sum is 50.

The square root of 74739983 is about 8645.2289154192. The cubic root of 74739983 is about 421.2284198544.

The spelling of 74739983 in words is "seventy-four million, seven hundred thirty-nine thousand, nine hundred eighty-three".